import copy

# a = get_int()
def get_int():
    return int(input())

# a = get_string()
def get_string():
    return input()

# a_list = get_int_list()
def get_int_list():
    return [int(x) for x in input().split()]

# a_list = get_string_list():
def get_string_list():
    return input().split()

# a, b = get_int_multi()
def get_int_multi():  # a, b = get_int_multi()
    return map(int, input().split())

# a_list = get_string_char_list()
def get_string_char_list():
    return list(str(input()))

# print("{} {}".format(a, b))
# for num in range(0, a):
# a_list[idx]
# a_list = [0] * a
'''
while (idx < n) and ():

    idx += 1
'''

def main():

    m = get_int()
    ret = 0
    if m < 600:
        ret = 8
    elif m < 800:
        ret = 7
    elif m < 1000:
        ret = 6
    elif m < 1200:
        ret = 5
    elif m < 1400:
        ret = 4
    elif m < 1600:
        ret = 3
    elif m < 1800:
        ret = 2
    elif m < 2000:
        ret = 1

    print(ret)




if __name__ == '__main__':
    main()

 import copy copy def get_int():
    return int(input())

# a = get_string() get_int return int(input()) int(input()) int input() input def get_string():
    return input()

# a_list = get_int_list() get_string return input() input() input def get_int_list():
    return [int(x) for x in input().split()]

# a_list = get_string_list(): get_int_list int(x) for x in input().split() for x in input().split() x input().split() ().split () input split for x in input().split() int(x) int x return [int(x) for x in input().split()] [int(x) for x in input().split()] def get_string_list():
    return input().split()

# a, b = get_int_multi() get_string_list return input().split() input().split() ().split () input split def get_int_multi():  # a, b = get_int_multi()
    return map(int, input().split())

# a_list = get_string_char_list() get_int_multi return map(int, input().split()) map(int, input().split()) map int input().split() ().split () input split def get_string_char_list():
    return list(str(input()))

# print("{} {}".format(a, b))
# for num in range(0, a):
# a_list[idx]
# a_list = [0] * a get_string_char_list return list(str(input())) list(str(input())) list str(input()) str input() input '''
while (idx < n) and ():

    idx += 1
''' def main():

    m = get_int()
    ret = 0
    if m < 600:
        ret = 8
    elif m < 800:
        ret = 7
    elif m < 1000:
        ret = 6
    elif m < 1200:
        ret = 5
    elif m < 1400:
        ret = 4
    elif m < 1600:
        ret = 3
    elif m < 1800:
        ret = 2
    elif m < 2000:
        ret = 1

    print(ret) main m = get_int() m get_int() get_int ret = 0 ret 0 if m < 600:
        ret = 8
    elif m < 800:
        ret = 7
    elif m < 1000:
        ret = 6
    elif m < 1200:
        ret = 5
    elif m < 1400:
        ret = 4
    elif m < 1600:
        ret = 3
    elif m < 1800:
        ret = 2
    elif m < 2000:
        ret = 1

     m < 600 m 600 ret = 8 ret 8 elif m < 800:
        ret = 7
     m < 800 m 800 ret = 7 ret 7 elif m < 1000:
        ret = 6
     m < 1000 m 1000 ret = 6 ret 6 elif m < 1200:
        ret = 5
     m < 1200 m 1200 ret = 5 ret 5 elif m < 1400:
        ret = 4
     m < 1400 m 1400 ret = 4 ret 4 elif m < 1600:
        ret = 3
     m < 1600 m 1600 ret = 3 ret 3 elif m < 1800:
        ret = 2
     m < 1800 m 1800 ret = 2 ret 2 elif m < 2000:
        ret = 1

     m < 2000 m 2000 ret = 1 ret 1 print(ret) print ret if __name__ == '__main__':
    main() __name__ == '__main__' __name__ '__main__' main() main def get_int_list():
    return [int(x) for x in input().split()]

# a_list = get_string_list(): def get_int_list():
    return [int(x) for x in input().split()]

# a_list = get_string_list(): get_int_list def get_int_multi():  # a, b = get_int_multi()
    return map(int, input().split())

# a_list = get_string_char_list() def get_int_multi():  # a, b = get_int_multi()
    return map(int, input().split())

# a_list = get_string_char_list() get_int_multi def get_int():
    return int(input())

# a = get_string() def get_int():
    return int(input())

# a = get_string() get_int def get_string():
    return input()

# a_list = get_int_list() def get_string():
    return input()

# a_list = get_int_list() get_string def get_string_list():
    return input().split()

# a, b = get_int_multi() def get_string_list():
    return input().split()

# a, b = get_int_multi() get_string_list def get_string_char_list():
    return list(str(input()))

# print("{} {}".format(a, b))
# for num in range(0, a):
# a_list[idx]
# a_list = [0] * a def get_string_char_list():
    return list(str(input()))

# print("{} {}".format(a, b))
# for num in range(0, a):
# a_list[idx]
# a_list = [0] * a get_string_char_list def main():

    m = get_int()
    ret = 0
    if m < 600:
        ret = 8
    elif m < 800:
        ret = 7
    elif m < 1000:
        ret = 6
    elif m < 1200:
        ret = 5
    elif m < 1400:
        ret = 4
    elif m < 1600:
        ret = 3
    elif m < 1800:
        ret = 2
    elif m < 2000:
        ret = 1

    print(ret) def main():

    m = get_int()
    ret = 0
    if m < 600:
        ret = 8
    elif m < 800:
        ret = 7
    elif m < 1000:
        ret = 6
    elif m < 1200:
        ret = 5
    elif m < 1400:
        ret = 4
    elif m < 1600:
        ret = 3
    elif m < 1800:
        ret = 2
    elif m < 2000:
        ret = 1

    print(ret) main
import copy

# a = get_int()
def get_int():
    return int(input())

# a = get_string()
def get_string():
    return input()

# a_list = get_int_list()
def get_int_list():
    return [int(x) for x in input().split()]

# a_list = get_string_list():
def get_string_list():
    return input().split()

# a, b = get_int_multi()
def get_int_multi():  # a, b = get_int_multi()
    return map(int, input().split())

# a_list = get_string_char_list()
def get_string_char_list():
    return list(str(input()))

# print("{} {}".format(a, b))
# for num in range(0, a):
# a_list[idx]
# a_list = [0] * a
'''
while (idx < n) and ():

    idx += 1
'''

def main():

    m = get_int()
    ret = 0
    if m < 600:
        ret = 8
    elif m < 800:
        ret = 7
    elif m < 1000:
        ret = 6
    elif m < 1200:
        ret = 5
    elif m < 1400:
        ret = 4
    elif m < 1600:
        ret = 3
    elif m < 1800:
        ret = 2
    elif m < 2000:
        ret = 1

    print(ret)




if __name__ == '__main__':
    main()


